Senior Java Developer

Senior Java Developer

Project info:

A large-scale, highly complex initiative focused on the development and maintenance of core internal systems. The project ensures seamless communication and integration between various backend components responsible for critical, high-volume travel and transactional operations.

Key Functional Areas:

• System Integration: Facilitating robust and efficient communication between internal microservices and proprietary components.

• Booking & Ticketing Lifecycle: Supporting core transactional flows, including ticket reservations, refunds, and exchanges.

• Search & Optimization: Powering backend algorithms designed to find and generate the most optimal flight connections.

• Financial Calculations: Handling complex pricing engines, fare structures, and diverse cost-assessment calculations.

Responsibilities:

• Design, develop, test and maintain backend applications using Java and Spring Boot.

• Build and support RESTful APIs and gRPC services.

• Develop solutions deployed on Google Cloud Platform (GCP) and Kubernetes.

• Collaborate with QA, SRE, and Product teams.

• Participate in CI/CD processes, deployments, and production support.

• Provide support during release cycles, including smoke testing, manual validation.

• Troubleshoot issues using logs, metrics, and monitoring tools.

• Conduct code reviews, mentor junior developers, and participate in an on-call rotation.

Requirements:

• 6+ years of experience with Java and Spring Boot.

• Experience building microservices, REST APIs, and gRPC services.

• Hands-on experience with GCP, Docker, and Kubernetes.

• Knowledge of GitHub, Jenkins, or GitHub Actions.

• Familiarity with monitoring tools such as Prometheus and Stackdriver/Cloud Monitoring.

• Basic scripting skills in Python or Bash.

• Experience with WireMock and performance testing.

• Communicative proficiency in both English and Polish.

Must possess a legal work permit in Poland

Benefits:

General benefits

• Hybrid work model combining office & remote work

• Attractively located office with collaboration spaces

• Onsite parking space for employees

• Referral program with financial bonus

• Life Insurance

• Budget for development (including language courses and others), clear career path with the possibility to gain experience in international environment

• Access to internal Learning Platform with multiple trainings oriented for professional growth

Lifestyle benefits:

• Access to MyBenefit platform (Multisport included)

• Team Building activities

• Charity initiatives

• Working environment promoting diversity and inclusion

Health benefits:

• Private medical care - Platinum Package